Seiko Cal. 0770 - 999

The Seiko 0770-999 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-cb14ea2ff0d4]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1980

Related Models

• Seiko 5674-739
• Seiko 6178-354
• Seiko 4529-895
• Seiko 5631-567
• Seiko 6314-733
• Seiko 7014-437
• Seiko 6163-195
• Seiko 6230-143
• Seiko 5274-294
• Seiko 4510-767
• Seiko 6374-750
• Seiko 6287-718